Multiplicity and Pseudorapidity Distributions of Photons inAu+AuCollisions atsNN=62.4GeV

We present the first measurement of pseudorapidity distribution of photons in the region $2.3\le \eta \le 3.7$ for different centralities in $\mathrm{Au}+\mathrm{Au}$ collisions at $\sqrt{s_{NN}}=62.4\mathrm{GeV}$. We find that the photon yield scales with the number of participating nucleons at all collision centralities studied. The pseudorapidity distribution of photons, dominated by ${\pi }^0$ decays, has been compared to those of charged pions, photons, and inclusive charged particles from heavy-ion and nucleon-nucleon collisions at various energies. The photon production has been shown to be consistent with the energy and centrality independent limiting fragmentation scenario.